The percentage points added to the reference rate to compute fixed rate elections on the debt instrument.

No definition available.

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- Definition

The amount of debt instrument covenant capital expenditures limitation after twelve years.

+ References

No definition available.

+ Details

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The amount of debt instrument covenant capital expenditures limitation for next twelve years.

+ References

No definition available.

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- Definition

The fixed charge coverage ratio under debt instrument covenant.

+ References

No definition available.

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- Definition

The net income required under debt instrument covenant minimum.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Represents the percentage required under the credit facility agreement.

+ References

No definition available.

+ Details

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- Definition

The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a fluctuating rate when amount is less than threshold.

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Indicates type of variable interest rate on debt instrument.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

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- Definition

Indebtedness divided by net capital.

+ References

No definition available.

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Note F - Debt (Details Textual)			6 Months Ended
Note F - Debt (Details Textual)	Feb. 13, 2024 USD ($)	Aug. 18, 2021 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2022 USD ($)	Aug. 23, 2021	Jun. 30, 2021 USD ($)	May 24, 2021 USD ($)
Payments to Acquire Property, Plant, and Equipment, Total			$ 1,357,000	$ 1,707,000
Line of Credit, Current			5,000,000		$ 3,400,000
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]	Secured Overnight Financing Rate (SOFR) [Member]
Interest Rate Swap [Member]
Derivative, Fixed Interest Rate		2.40%					2.40%
Manufacturing Facility and Warehouse [Member] \| Carlsbad, California [Member]
Payments to Acquire Property, Plant, and Equipment, Total		$ 17,500,000
Credit Agreement [Member] \| Term Loan [Member]
Long-Term Debt			9,100,000
Wells Fargo Bank, N.A. [Member] \| Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 12,500,000	$ 20,000,000							$ 20,000,000
Debt Instrument Covenant Capital Expenditures Limitation, Amount, Next Twelve Years						$ 15,000,000		$ 10,000,000
Debt Instrument, Basis Spread on Variable Rate	2.25%	1.29%
Debt Instrument Covenant Minimum, Net Income Required	$ 1
Debt Instrument Covenant, Fixed Charge Coverage Ratio	1.25
Debt Instrument Covenant Capital Expenditures Limitation, Amount, After Twelve Years	$ 6,500,000
Line of Credit, Availability Reserve Percentage	10.00%
Long-term Debt, Percentage Bearing Fluctuating Interest, Threshold Amount	$ 100,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Debt Instrument Basis Spread on Elected Fixed Rate Borrowing	1.00%
Line of Credit Facility, Current Borrowing Capacity			10,800,000
Line of Credit, Current			$ 5,000,000
Wells Fargo Bank, N.A. [Member] \| Credit Agreement [Member] \| Maximum [Member]
Ratio of Indebtedness to Net Capital	1.5
Wells Fargo Bank, N.A. [Member] \| Credit Agreement [Member] \| Term Loan [Member]
Debt Instrument, Face Amount		$ 10,000,000
Debt Instrument, Basis Spread on Variable Rate		1.80%
Debt Instrument, Term (Year)		7 years